Tire-armor



T. 1. McMANUS.'

TIRE ARMOR.

ARPLICATIONvFILED AUG.25, 1919. 1,380,129. Patented Feb.10,192o.

...TIE- l y j /Z 9 j mvrrnn sfrfkrnsrkrnivr lorrnin.

Y THoMksJ. Meivmlvus, or' MILWAUKEE, Wisconsin. v

{rien-ARMOR. f

T all 'whom t may concern Be it known that I, THOMAS J. McManus,

a citizen'of the United States, residing at Milwaukee, in the county Vof Milwaukee and State of Wisconsin, have invented certain vnew and useful Improvements 1n Tire.-

Armors; and I do declare thepfollowing to be a full, clear, and exact description ofthe invention, such as will enable others skilled accompanying drawing, in which Figure 1 is a view partly in side elevation, and partly 1n vertical section, illustrating a portion of a tire and a portion of my improved armor applied to the tire. I

Fig. 2 is a top plan or radial view ofthe structure disclosed in Fig. 1.

Fig. 3 is alsectional view along the line 3*-3 of Fig. 2.

Fig. 4 is a plan or radial View of one of the substantially crescent shaped Vtreadplates, A l

Referring to these drawings in detail, in which similar reference characters correspond with similar parts throughout the several views, and in which the tire 1 and rim 2 are shown merely to illustrate the relation of the armor thereto--V The invention comprises an annular'series of tread plates 3, two annular series of links 4, screws or pivot elements 5 which connect the links together, and rivets 6 which connect the links to the tread-plates.

Each -plate 3 isl formed with apertures 7 ,v and the links 4 are provided with similar apertures at their middle portions, and the Vrivets 6 extend through the apertures of the links 4 and plates 3. It will be seen, therefore, that the links 4 are substantially pivotally connected to the plates 3, respectively, and that by *allowing a slight clearance between the furcations 8 and the inserted ends 9 ofthe links 4, the armor is permitted'to speei'cauon orrtters raient.

' .Implica-.tion fued'august 25,1919-, seria1No.319,6ao.. f

that the lateral resiliency of the tire is not interfered with when side pressure is" encountered. Each plate 3 is also'formed with a circumferential extension 10 which is arcuate or substantially crescent shaped in radial contour, and the opposite end of each plate 3 is formed with a rib 11 which projects outward sufliciently to form a tractorlug which engages with the track on which the wheel travels and prevents circumferential slipping of the wheel. In order to pre-l vent slipping of the wheel laterally of its circumferene, each plate 3 is formed with a series-of corrugations 12 which terminate in the rib 11. The rib 11 also strengthens and stiflens the plate 3 where it would otherwise be weakened by the provision of a groove or recess 13 which receives the tongue 10 of one vvof the adjacent plates 3. It will be seen, Vtherefore, that the plates 3 are overlapped Vwith one another so `that there .is no joint through which any sharp pointed thing can enter to puncture the tire.

lThe plates 3 are preferably formed of springy metal and one purpose of forming them in the crescent shape, as illustrated in Fig. 4, is to make their length, (laterally of the series) as great as practical, so as to maximize their resiliency. Another purpose of forming plates in this shape is to make the rib 11 ofthe `maximum rigidity without increasing its circumferential thickness. The curvature of the rib 11 also aids in preventing the wheel from slipping laterally.

Although I have described this embodi ment of my invention very specifically, it is not intended to limit invention to these exact details of construction and arrange- 'ment of parts but changes may be made within the scope of the inventive idea as implied and claimed.

What I claim as my invention is: 1. A tire armor comprising an annular series of tread-plates each of which is substantially crescent shaped in radial contour,

and a pair of links for each of said treadplates, each link of each pairl having its middle portion secured to one of said crescent-shaped tread-plates and having its ends pivotally connected to two other links of said pairs.

2. A tire armor comprisingY an annular series of tread-platesl each of which .isv

formed with corrugations extending circumferentially and with a rib in which one end Vof each corrugation terminates, said rib be- ]Patentea' nel); 1o, '1920,

Y'L ingarcuate in radial contour and projecting radially outward Vt0 forni a traction lug, each plate having al relatively thilrcircum-j ferential extension beyond the corrugations,..

each plate being formed With a recess under saidrib to receive the circumferential extent-Y. 1 sion'of one oftheadj'a'cent' plates, each plate"L being'apertured at opposibersidesfof sad cor# V2 'y v Y v`1,330,129v

rugationS, links having their ends connected n j together, and a rivet for eachy link, saidvrivet 10 extending tl'roughitheV middle portion of its linkfand through one of the apertures of the 'contiguous tread-plate. I i

In testimony whereof I have hereunto set my hand'. Y

y THGMAS J. MCMANUS. 

